code: def test_simplex_to_sphere_belongs(self, n_points, atol):
      point = self.data_generator.random_point(n_points)
  
      point_sphere = self.space.metric.simplex_to_sphere(point)
  
      res = self.space.metric._sphere.belongs(point_sphere, atol=atol)
      expected = gs.ones(n_points, dtype=bool)
      self.assertAllEqual(res, expected)
  
imports: import pytest
  import geomstats.backend
  from geomstats.test.vectorization import generate_vectorization_data
  from geomstats.test_cases.geometry.base import LevelSetTestCase
  from geomstats.test_cases.geometry.riemannian_metric import RiemannianMetricTestCase
  from geomstats.test_cases.information_geometry.base import InformationManifoldMixinTestCase
label_desc: Use image node_id 2 for calling the MultinomialMetricTestCase obj's underlying member method code with example usage: obj.test_simplex_to_sphere_belongs(n_points, atol) without return types